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E. Music Festival The boy Vitya loves to listen to music very much. He knows that $n$ albums are due to be released this Friday, $i$-th of which conta 阅读全文
posted @ 2023-03-15 12:17
onlyblues
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C. The Very Beautiful Blanket Kirill wants to weave the very beautiful blanket consisting of $n \times m$ of the same size square patches of some colo 阅读全文
posted @ 2023-03-15 09:18
onlyblues
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